[MPlayer-dev-eng] [PATCH] Border processing adaptive quant

[Guillaume Poirier]

Hi,


On Tue, 22 Mar 2005 21:10:17 +0100, Guillaume Poirier
<poirierg at gmail.com> wrote:
> Hi,
> 
> 
> On Tue, 22 Mar 2005 15:10:04 -0400, Giacomo Comes <comes at naic.edu> wrote:
> > On Tue, Mar 22, 2005 at 07:50:33PM +0100, Guillaume POIRIER wrote:
> > > Hi,
> > > This patch is supposed to add support to border processing adaptive
> > > quant to lavc in MEncoder.
> > > This functionality was added to ffmpeg in late January by Christophe
> > > Massiot, but so far, there were no MEncoder support, hence this patch.
> > >
> > > The problem is that this patch doesn't work, and even though it's very
> > > simple, I don't quite understand what's the problem.
> > >
> > > Any bright mind to light me up?
> >
> > May be because you give as valid range 0.01, 255.0 but you assign
> > 0.0 as initial value?
> 
> That's a thought. I have to admit I set this range without knowing
> which valid range it supported.
> 
> I'll in investigate in that direction. Thanks!

Ok, I tested a bunch of ranges, none of them seem to work... but for a
"good" reason:
MEncoder _seems_ broken on both of my machines (amd-64 and i386).
It just won't start to encode anything, failing silently whether I
encode with x264, lavc or XviD.
Maybe it's just a side-effect of the newly added multi-file support
that forces the input file to be given at a certain moment in the
command line. That's why I tested to put the input file both a the
beginning and at the end of the command line, with no luck.
Does anybody else experience some problems with Mencoder CVS?
Has anybody had time to have a look at my tiny patch to tell if it's
the right way to do it?

Regards,
Guillaume